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Date
Inquiry

Is RRNC required for a home that is built on concrete piers with the enclosed envelope of the house a good 2 feet above the ground. The space between the house and the ground is completely open and continuously vented to outside air. All penetrations of the floor are sealed to the outside (SIPS panels used).

Ruling

If the home is raised above the ground by 2 feet and the space is completely open to the outside such that there is continuous air flow, then radon resistant new construction is not needed. EQ 9.1 is waived, and if the home is in EPA Radon Zone 2, the home can earn credit for EQ 9.2.

Internationally Applicable
Off
Campus Applicable
Off